Home / 54,108.60-81,162.89-20,844.33

Finding the Fourth Proportional to 54,108.60, 81,162.89 and 20,844.33

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Solution

The fourth proportional to 54,108.60, 81,162.89 and 20,844.33 is: 31,266.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,108.60 : 81,162.89 = 20,844.33 : x
  2. Step 2: Convert to fraction form
    54,108.60/81,162.89 = 20,844.33/x
  3. Step 3: Cross multiply
    54,108.60x = 81,162.89 × 20,844.33
  4. Step 4: Simplify right side
    54,108.60x = 1,691,786,062.91
  5. Step 5: Solve for x
    x = 1,691,786,062.91/54,108.60
  6. Step 6: Final answer
    x = 31,266.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.